All categories

3 years ago

What are three complex fractions that simplify to one fourth

Mathematics

1 answer:

kirill115 [55]3 years ago

7 0

8/32
16/64
32/128
If you simplify all of these (divide by the greatest common factor), you will get 1/4

You might be interested in

A cheetah's speed was timed over a set distance. The cheetah was clocked running 60 miles per hour. Which equation is the relati

Troyanec [42]

Answer:

D. y=70x

Step-by-step explanation:

The cheetah was clocked running 70 miles per hour.

i.e. in 1 hour cheetah covered 70 miles

in 2 hours cheetah covered 140 miles

in 3 hours cheetah covered 210 miles

in general, in n hour cheetah covered 70n miles

If y denote the distance covered

and x denotes the time cheetah runs

Then, y=70x

Hence, the equation which shows the relationship between the distance, y, and time, x, the cheetah runs is:

D y=70x

8 0

3 years ago

A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that

kicyunya [14]

Answer:

The sample size is $n = 36$

Step-by-step explanation:

From the question we are told that

The sample standard deviation is $s = 1.5$

The mean difference of the two groups is $\=x _ 1 - \=x_2 = 1$

The standard error is $SE = \frac{ \= x_1 - \= x_2}{4}$

=> $SE = \frac{1}{4}$

Let assume that the confidence level is 95% hence the level of significance is

$\alpha = (100-95)\%$

=> $\alpha = 0.05$

So the critical value of $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * SE$

$E = 1.96 * \frac{1}{4}$

$E = 0.49$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\alpha }{2} * s^2}}{E}]^2$

=> $n = [\frac{1.96 * 1.5}{0.49} ]^2$

=> $n = 36$

6 0

4 years ago

X + 31504 = 92832<br> Find X value

elena-14-01-66 [18.8K]

Answer:

92832-31504=61328...........

4 0

3 years ago

Read 2 more answers

Find the area of this circle

IRISSAK [1]

Answer:

78.5398 cm^2

Step-by-step explanation:

r = 1/2*d => d = 10 cm

r = 5

A = pi*r^2

= pi*5^2 => 3.1415*5^2

=> 78.5398

3 0

3 years ago

And an equation of the line. Write the equation using function notation.

NeTakaya

Answer:

F(x) = - 2/5x - 11

Step-by-step explanation:

F(x) = - 2/5x + c

-9 = - 2/5(-5) + c

-9 = 2 + c

- 11= c

F(x) = - 2/5x - 11

7 0

3 years ago